| 摘要 |
In order reliably to prevent, in a bunker (1) according to Fig. 2 of uniform internal cross-section, the formation of a ring of material which adversely affects the discharging through apertures in the flat bottom (2), a fitting (13) is provided, preferably at a single point (12) on the periphery, which forms an interruption point for the ring of material which would otherwise form. The fitting begins at a distance from the flat bottom (2) and extends over several metres' height of the bunker, with a substantially constant radial extent, towards the axis (8) of the bunker, a triangular cross-section (17, 16) which decreases in its peripheral extent from top to bottom preferably being provided. <IMAGE>
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